3. The common stocks of Blatz Company and Stratz, Inc., have expected returns of 15 percent and 20 percent, respectively, while the standard deviations are 20 percent and 40 percent. The expected correlation coefficient between the two stocks is .36. What is the expected value of return and standard deviation of a portfolio consisting of

(a) 40 percent Blatz and 60 percent Stratz?

(b) 40 percent Stratz and 60 percent Blatz?